床太软:床垫太软,睡觉时背部肌肉得不到放松,醒来就会觉得腰背酸痛。 包太重:如果包太重,会加重脖子和肩胛骨的负担,使这一部分的肌肉受损。太重的公文包和手提箱也同样有害。所以除了推销员,一般不应背太沉的包。 洗脸池太低:洗脸池太低或边缘太宽 The bed is too soft: the mattress is too soft, the back muscles do not relax when you sleep, wake up and you feel back pain. Package too heavy: If the package is too heavy, it will increase the burden on the neck and shoulder blades, so that this part of the muscle damage. Too heavy briefcases and suitcases are equally detrimental. So in addition to salesman, generally should not be too heavy backpack. Washbasins too low: Washbasins too low or too wide